Hamamoto Shin, Horie Tomoaki, Hauser Felix, Deinlein Ulrich, Schroeder Julian I, Uozumi Nobuyuki
Department of Biomolecular Engineering, Graduate School of Engineering, Tohoku University, Aobayama 6-6-07, Sendai 980-8579, Japan.
Division of Applied Biology, Faculty of Textile Science and Technology, Shinshu University, Nagano 386-8567, Japan.
Curr Opin Biotechnol. 2015 Apr;32:113-120. doi: 10.1016/j.copbio.2014.11.025. Epub 2014 Dec 18.
Plant cells are sensitive to salinity stress and do not require sodium as an essential element for their growth and development. Saline soils reduce crop yields and limit available land. Research shows that HKT transporters provide a potent mechanism for mediating salt tolerance in plants. Knowledge of the molecular ion transport and regulation mechanisms and the control of HKT gene expression are crucial for understanding the mechanisms by which HKT transporters enhance crop performance under salinity stress. This review focuses on HKT transporters in monocot plants and in Arabidopsis as a dicot plant, as a guide to efforts toward improving salt tolerance of plants for increasing the production of crops and bioenergy feedstocks.
植物细胞对盐分胁迫敏感，且生长发育不需要钠作为必需元素。盐渍土壤会降低作物产量并限制可利用土地。研究表明，HKT转运蛋白为介导植物耐盐性提供了一种有效机制。了解分子离子转运和调控机制以及HKT基因表达的控制对于理解HKT转运蛋白在盐分胁迫下提高作物性能的机制至关重要。本综述聚焦于单子叶植物和作为双子叶植物的拟南芥中的HKT转运蛋白，为提高植物耐盐性以增加作物和生物能源原料产量的研究工作提供指导。
